Minecraft Forums

I've been getting some kind of strange lag in my single player world. It only started a couple days ago and I have been searching for any kind of fix for it but have been unsuccessful.

I am getting what I would only describe as the tick or block lag I have seen in SMP videos I have seen on YouTube. My frame rate is unchanged, near constant 60 VSyced on maxed settings, however I am getting the jittery sky as well as blocks reappearing and items just sitting on the ground for a few seconds. My beacons also only refresh their effects every 15 seconds or so. I don't have any huge redstone projects going and I have looked for egg holding zombie hordes but haven't found any as my area is pretty well lit up. It is a world specific problem. I am not using any mods except for the latest version of Optifne.(I was in 1.7.4 for a bit while waiting for Optifine to update which is why I mentioned the egg holding zombies.) I have tested 1.7.4 and 1.7.2 without Optifine but get the same problems. I am running Minecraft on a self-built computer running Windows 7, Java Runtime version 7 update 40 build 1.7.0_40-b43. If you need any more info to help me with this problem I will gladly give it to you. Any help is apreciated.

If it's happening in this world only, then it may be corrupt, so you can try to repair it with MCEdit. Open the offending world in MCEdit, press 'ctrl-i' and select 'Repair regions' in the dialogue which pops up. Once this has completed, save your world and exit MCEdit.
To download MCEdit, go to http://www.mcedit.net/ and choose the version appropriate for your OS.

Quote from PandaAngelx

Well you can try this out Render Distance on: Tiny or Short Clouds: off Graphics: fast not fancy Hope it helped!

No, Panda, its not frame rate lag. I am getting my usual 60 VSynced on max settings. And I already tried literally all the settings in Optifine.

Quote from stupid3700

If it's happening in this world only, then it may be corrupt, so you can try to repair it with MCEdit. Open the offending world in MCEdit, press 'ctrl-i' and select 'Repair regions' in the dialogue which pops up. Once this has completed, save your world and exit MCEdit. To download MCEdit, go to http://www.mcedit.net/ and choose the version appropriate for your OS.

Unfortunately, that didn't work. The world is still playable, barely. I was planning on resetting my world when 1.8 came out anyway, and I suppose I could go ahead and do that using the snapshots, although I won't be able to use Optifine. Maybe spend some time searching for the perfect seed. Oh! A witch hut backed right against a mushroom biome would be great! Is that possible now with the way the biomes spawn? If not I will either choose a witch hut or Mushroom biome seed.

Quote from cestislife

Could you provide you development console log?

What do you mean?

Quote from cestislife

To make sure the launcher stays open: click Edit Profile, then check Launcher Visibility, select Keep Launcher Open and finally hit Save Profile.

The development console log is on the second tab.

[20:46:37 INFO]: Refreshing local version list...

[20:46:37 INFO]: Minecraft Launcher 1.3.9 (through bootstrap 5) started on windows...

[20:46:37 INFO]: Current time is Jan 24, 2014 8:46:37 PM

[20:46:37 INFO]: System.getProperty('os.name') == 'Windows 7'

[20:46:37 INFO]: System.getProperty('os.version') == '6.1'

[20:46:37 INFO]: System.getProperty('os.arch') == 'amd64'

[20:46:37 INFO]: System.getProperty('java.version') == '1.7.0_40'

[20:46:37 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'

[20:46:37 INFO]: System.getProperty('sun.arch.data.model') == '64'

[20:46:37 INFO]: Refreshing remote version list...

[20:46:38 INFO]: Refresh complete.

[20:46:38 INFO]: Loaded 4 profile(s); selected 'Insanity633'

[20:46:38 INFO]: Refreshing auth...

[20:46:38 INFO]: Logging in with access token

[20:46:51 INFO]: Getting syncinfo for selected version

[20:46:51 INFO]: Queueing library & version downloads

[20:46:52 INFO]: Download job 'Version & Libraries' started (16 threads, 27 files)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.12\twitch-5.12.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.2\authlib-1.2.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Download job 'Resources' skipped as there are no files to download

[20:46:52 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.2\authlib-1.2.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1-nightly-20131120\lwjgl-platform-2.9.1-nightly-20131120-natives-windows.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1-nightly-20131120\lwjgl_util-2.9.1-nightly-20131120.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\5.12\twitch-platform-5.12-natives-windows-64.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1-nightly-20131120\lwjgl-2.9.1-nightly-20131120.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Attempting to download C:\Users\Irie\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4.jar for job 'Version & Libraries'... (try 0)

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1-nightly-20131120\lwjgl_util-2.9.1-nightly-20131120.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.12\twitch-5.12.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1-nightly-20131120\lwjgl-2.9.1-nightly-20131120.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1-nightly-20131120\lwjgl-platform-2.9.1-nightly-20131120-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\5.12\twitch-platform-5.12-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that

[20:46:52 INFO]: Finished downloading C:\Users\Irie\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4.jar for job 'Version & Libraries': Used own copy as it matched etag

[20:46:52 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:00.719)

[20:46:52 INFO]: Launching game

[20:46:52 INFO]: Looking for old natives & assets to clean up...

[20:46:52 INFO]: Unpacking natives to C:\Users\Irie\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-463487150411492

[20:46:53 INFO]: Launching in C:\Users\Irie\AppData\Roaming\.minecraft

[20:46:53 INFO]: Half command: C:\Program Files\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -Djava.library.path=C:\Users\Irie\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-463487150411492 -cp C:\Users\Irie\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.2\authlib-1.2.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1-nightly-20131120\lwjgl-2.9.1-nightly-20131120.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1-nightly-20131120\lwjgl_util-2.9.1-nightly-20131120.jar;C:\Users\Irie\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.12\twitch-5.12.jar;C:\Users\Irie\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4.jar net.minecraft.client.main.Main

[20:46:54 INFO]: Client> [20:46:54] [main/INFO]: Setting user: Insanity633

[20:46:54 INFO]: Client> [20:46:54] [main/INFO]: (Session ID is token:acd3dfdd1e44471fbaf3058f7bce2d0c:b4d933e6e88e4f1195bd989a1a3333b5)

[20:46:54 INFO]: Client> [20:46:54] [Client thread/INFO]: LWJGL Version: 2.9.1

[20:46:55 INFO]: Client> [20:46:55] [Client thread/INFO]: Reloading ResourceManager: Default, Vattic's Faithful 32x 1.7.zip

[20:46:56 INFO]: Client>

[20:46:56 INFO]: Client> Starting up SoundSystem...

[20:46:56 INFO]: Client> Initializing LWJGL OpenAL

[20:46:56 INFO]: Client> (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)

[20:46:56 INFO]: Client> OpenAL initialized.

[20:46:56 INFO]: Client>

[20:46:56 INFO]: Client> [20:46:56] [Sound Library Loader/INFO]: Sound engine started

[20:46:58 INFO]: Client> [20:46:58] [Client thread/INFO]: Created: 1024x1024 textures/blocks-atlas

[20:46:58 INFO]: Client> [20:46:58] [Client thread/INFO]: Created: 512x512 textures/items-atlas

If u want to hold on this older world pleas upload it to an filehoster and we tray to fix it for u.

[20:46:58 INFO]: Client> [20:46:58] [Client thread/INFO]: Created: 512x512 textures/items-atlas
If you are using a 512x512 texture pack, that may very well be the problem.

I have already determined it doesn't occur in new worlds. And I am using Vattic's 32x Faithful pack.

Never mind. I just loaded the world and everything in my chests and inventory was gone.